This patch is needed to avoid inclusion of GCC's float.h that defines
LDBL_MANT_DIG at 53 (while the source file checks for 113 or 64.

Index: freebsd-6.0_beta4/lib/msun/src/s_fmal.c
===================================================================
--- freebsd-6.0_beta4.orig/lib/msun/src/s_fmal.c
+++ freebsd-6.0_beta4/lib/msun/src/s_fmal.c
@@ -28,7 +28,7 @@
 __FBSDID("$FreeBSD: src/lib/msun/src/s_fmal.c,v 1.2 2005/03/18 02:27:59 das Exp $");
 
 #include <fenv.h>
-#include <float.h>
+#include <machine/float.h>
 #include <math.h>
 
 /*